Passenger elevator



Nov. 11, 1924. 1,515,059

F, MCARTHUR PASSENGER ELEVATOR Filed Jan. 13. 1923 Patented ov. ll, l924,

`HCEm PASSENGER ELEVAR.

Application lcd JanuaryY 13, i923. Serial No. 6i2,471.

To all whom t may concern.'

Be it known that l, FINLEY MCARTHUR, a subject of the British Empire, and a resident of Cedar Rapids, Linn County, Iowa, have invented certain new and useful lmprovements in Passenger Elevators, of which the following is a specification.

li/lyA invention relates to improvements in passenger elevators, and the object of my improvement is to supply a device of this class for carrying and being manually operated and controlled by a single passenger, and being of simple construction, inexpensive, and requiring the minimum of ef-y fort on the part of a passenger in operatinoF it.

-zlhis object I have accomplished by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which Fig. 1 is a side elevation of a framework containing an elevator shaft, with the movable elevator platform or cage mounted in the shaft for vertical movements, and including mechanism for operating and controlling the movements of the platform according to my invention, parts of the framework being broken away; Fig. 2 is a side elevation, on a larger scale, Fig. 3 a front elevation, and Fig. 4 a top plan with parts broken away, of the operating and controlling mechanism mounted on the platform in the cage.

Any suitable framework construction may be adopted to contain the elevatorshaft, that shown being illustrative merely. The framework shown comprises corner standards 26 connected at the top and bottom respectively by the horizontal beams 28 and 27, and vertical slide-bars 25 are fixed at opposite parts of said framework interiorly.

Any desired form of cage may be used, the one shown being of skeleton type, having corner standards 21 connected at top and bottom respectively by horizontal beams 22 and 23, a platform 24 being mounted upon the lower beams 23.

In the top part of said framework sheaves 33 and 34 are rotatably mounted. A flexible cable 37 has one end secured to lan eye-bolt 31 in the top of the cage, is

The'counter-weight 35 may be such as to approximately equal the combined weights of the cage with the -operating mechanism thereon and of an adult passenger.y

A back-plate 1 is secured across two of the standards 21 of the cage, andupon this base-members 19 are fastened by means of bolts 20, the spaced pair of members 19 y having integral arms 2 provided with alined terminal bearings 3 to receive the opposite ends of a rotatable shaft 4, a winding-drum 5 being xed on the shaft intermediate the arms 2. The winding-drum has annular flanges 9 at its ends, of which one has a plurality of notches 10.r i

The numeral 7 denotes a flexible cable whose middle is fastened at 6 to the middle of the winding-drum 5 to wind reversely thereon, the cable being secured at its opposite upper and lower ends tautly to eyebolts 30 and 29 respectively secured in upper and lower parts of said framework.

A handle crank 8 is fastened on one projecting end of the shaft 4 with which a passenger may manually rotate the windingdrum. An arm 15 is rigidly fastened upon the top of one of the arms 2, and a vertically-disposed lever 17 has its lower end pivoted at 16 to the outer end of the arm 15, the depending member of the arm 15 having an arcuate recess in its edge facing and adapted to engage and fit the abutting circumferential edge of the notched annular flange 9 of the winding-drum frictionally, to serve as a friction-brake-head, the passenger using this lever 15 to control the speed of the drum.

A horizontally-disposed lever 12 has one end pivoted at 13 to a short projection` 14 on a base-member 19, and carries a laterallydirected detent 11 which may be swung downwardly into a notch 1() of the annular flange 9 when it is desired to stop rotation of the winding-drum and hold the latter locked releasably.

It will be understood that a single passenger in said cage may easily lift and lower the cage by means of said manually controlled mechanism, with little effort if any in ascending, because of the balancing effect of the counterweight 35, the windingdrum acting in either of opposite directions upon the independent fixed cable 7 in winding it reversely. The hand-brake and handlocking lever permit complete control of the. winding-drum in the descent of the loaded cage with complete safety to the passenger,

Slight modifications in any ot the parts or mechanisms of this device may be elected Without departing from the principle of this invention or the scope of its protection.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

A passenger elevator, comprising a stal tionary vertically elongated hollow structure containing vertical guides on opposite sides, a hollow cage mounted slidably upon said guides, a pair of sheaves mounted rotatably upon the top of said structure, a cable connected to the top of said cage and passed about said sheaves, a countervveight for said cage suspended on the depending part of said cable, another cable having its upper and lower ends respectively secured to the top and bottom of said structure, said cage being apertured at the top and bottom with the last-mentioned cable traversing said apertures, a bracket lixed on a side `Wall of said cage, a Winding-drum mounted rotatably on said bracket and provided With a circumferentially dentated end disk and a terminal crank, an arm pivoted terminally to said bracket and having a concentrically curved depressed edge to rictionally engage and brake the circumferential edge of said disk, another arm terminally pivoted to said bracket and having a detent to engage between detents on said circumferential edge of the disk, said last-mentioned cable being medially secured upon said. Winding-drum With its parts Winding upon the drum in the same direction around the. drum from a loop Where so secured, whereby rotation of the drum in either of opposite directions will move the cage along said guides in either of certain directions.

Signed at Waterloo, Iowa, this 16th day of December, 1922.

FINLEY MCARTHUR. 

